Glass-charging device



July 9 1929- A. F. TREMBLAY 1.720.496

v GLASS CHARGING DEVICE Filed July 2, 1927 s sheets-sheet 2 www ww www July 9, 1929.

A. F.4TREMBL`AY GLASS CHARGING DEVICE 3 Sheets-Sheet Filed July 2, 1927 Trmla www -lkfboma/WM.

Patented July 9, 1929.

UNITED STATES PATENT OFFICE.

ALBERT F. TREMBLAY, F THREE RIVERS, TEXAS.

` GLASS-CHARGING DEVICE.

Application led July 2,

The present invention relates to improvements in glass chargmg devices, and has Jfor an object to provide an improved device for' supplying measured charges of molten glass to a circular or other bottle forming machine in which the molds for the bottles are arranged'circularlyand revolved about beneath the glass chargingapparatus from which they receive (robs of the molten glass. Another object oit-the invention is to provide a glass charging machine in which shears are provided, operated 'concurrently with the discharge plunger for severing the glass gob, whereby to promote uniformity 'in the gobs supplied to the molds and. the consequent uniformity in the character of the bottles produced.

Another object of the invention is to provide a mechanical apparatus for carrying 19,27.4 serial aannam.

'throughthe central opening 11 of the reservoir, being aided thereto by the action of the vertically reciprocating plunger 12.

This plunger is carried by a shaft 13 which slides axiallythrough a rotary sleeve 14 and the shaft is secured by the key 15 through its non-rotating bearing 18 in the beam 18, which key permits of axial movement of the shaft but not-rotary movement. The 4sleeve 14 is rotated by the action of a chain 16 trained about a sprocket 17 ixed to the sleeve above the beamv 18 in which thesleeve 14 is free to rotate, but fixed against an axial motion.

I .Theupper surface of the sleeve 14`is 1. formed into a cam. track 19 traversed by a Y roller 20 supported upon' the upper portion of the shaft 13 as by a yoke 21, which is provided with the lower and upper collars out the above purposes, which will be of.O 22 and 23 adjustable longitudinally on the great simplicity in construction, although having a high degree of flexibility whereby necessary adjustments may be made with ease through a minimum amount of parts.

With the foregoing and other objects in view, the invention will vbe more fully described hereinafter, and willlloe more particularlypointed out in the claims appended hereto. ln the drawings, wherein like symbols refer to like or corresponding parts throughout the several views,

Figure lis a side'elevation, with parts y broken away, of a glass 'charging' machine constructed according to the present invention. 1

Figure 2 is a plan view, with parts in section of the shears.

Figure 3 is a section'taken on the line 8--8 in Figure 2. y l

Figure 4 is .an enlarged elevation of the plunger and supporting mechanism 'with parts indicated in section.

h Figure 5 is a top plan view of the plunger ead.

Figure 6 shows a slight modilication of plunger with parts in section and parts broken away, and

Figure 7 is a'vertical central. section taken through the plunger reciprocating means of Figure 1.

Referring more particularly to the drawings 7 and 8 represent a portion of the framework for holding the reservoir 9 for the molten glass, which is'adapted to descend yoke arei provided with the bearings'24 andk in which is journaled to rotate a thread,u ed `shaft 26 passing through and having threaded engagement with a bolt head*A 27, the shank 28 of which' extends transversely through the shaft 13. This shank 28 may, be placed in one or more transverse openings 29 in the'shaft. p

The lower end of the screw adjusting shaft 26 is coupled as by the universal connection 30 with an adjusting-.rod 31 having at its lower end the handle 32 locatediin al convenient position close to the motor unit and to the hand of the operator.

Now'the chain 16 is trained over a sprocket 33 on the drive shaft 34 extending down into the gear box 35 and driven by the worm gearing 36 from the counter shaft 37 having the pinion 38 meshing with the motor pinion 39 on the armature shaft 40 ofthe .electric or other motor 41.

As shown in Figure 4 the shaft 13 is formed with areduced nipple 42 providing ure 5, is provided with the -bifurcated diametrically disposed lateral arms 50 and '51. In the slot 52 of the arm 50 the screw v47 is adapted to iitwhile in the slot 53 of the opposite arm 51v the hinged bolt 48 is t adapted to swing down, as indicated in Figure 4. The screw 47 and the nut 54 on the hinge bolt 48 may be tightened to bind the plunger head 46 and plunger 12 in the dotted line position, indicated in Figure 4, which is the normal operative position.' The nipple 42 acts to center the plunger. By unscrewing the'screw bolt 47 and the nut 54, the hinged bolt 48 may be swung out of the socket 53 permitting the plunger head 46 to drop down and -be removed from the screw i 47 by a lateral movement.

In Figure 6, the plunger l2 `made of clay or other appropriate material is shown as havi-nga head 55 seated upon a shoulder 56 in the socketed head piece 57 provided with the slotted arms 58 and 59 adapted to cn' gage the driver disc 44 in the manner shown in Figure 4. A nut 60 is threaded, as. indicated at 61, into the upper portion of the socket of the head piece 57. This nut 60 is providedwith the sockets 62 for' a spanner wrench and in the center Ais provided the depression 63 for receiving the tip` of the nipple 42 in Figure 4. The nut 60 is adapted -to engage the upper rounded surface ofthe blades 64 and 65 of well known notched l form. The blades are carried by the arms 66 and 67 fulcrumed at 68 and 69 and having the tail pieces 70 and 71 carrying the rollers 72 and 73. These rollers. are disposed in the lpath of the rotary cam 74 havingthe oppositely extending high points or lobes 75 and 76. The cam 74 is aliXed to a shaft 77.

To this shaft is also'afxed a sprocket 78` driven by the chain 79 from the drive shaft 34 Upon this drive shaft is fixed a hub 80, as shown in Figures 2 and 3, as by the key 81, so that the hub and a worm wheel 42 formed therewith are compelled to rotate with the drive shaft 34. The. sprocket 83 which engages the chain 79 is loosely mounted about the hub 80 and is driven through the worm 8'4, which is carried upon the side of the sprocket 83as by the arms 85 and is disposed in mesh with the worm wheel -82.-

The worm is adjusted as by the detachable adjusting wrench 86.

The shears being closed by the cam larrangement are intended to be opened by action of the pneumatic engine shown which consists of the cylinder 87 Having the two pistons 88 andA 89 therein coupled by the l ated and connecting rods and links 90 and 91 to the arms 66 and 67. The air is let in centrally through the port 92 through a pipe 93, which communicates with a source of compressed air and with any appropriate type of valve action for admitting this air periodically to the cylinder 87.

In operation the plunger 12 will be constantly reciprocated in the molten metal which is at a very high-temperature. Consequently the plunger wears out rapidly or lis fractured and requires replacing. Due

to the intense heat encountered by the workmen while changing the plunger, the invention'is conccrned'in Figures 4. 5 and 6 with the simplified arrangement of holding and changing of the4 plunger. As a consequence this work may be carried out more rapidly and -at the same time improving the conditions' for the workmen. Furthermore, a. compact and positive means is provided 't or holding the plunger to the `shaft during operation. The washer 64 in Figure 6 is rounded in order that the pressure of the nut 60 may be always in the center regardless of the uneven top surface of the plunger. This arrangement makes the device self-centerlng.

The plunger 12 is driven rapidly from the cam track 19 engaging beneath the roller 20 and consequently raising the shaft and permitting it to fall. It will be noted that the cam 19 is cylindrical and is concentric with the shaft 13 carrying the roller 20. This makes a more compact and less com'- plicated arrangement than where the cani is remote from the shaft and operates through evers.

Most glass severing devices are air opernot positive so that a slight varia tion in the pressure causes a fluctuation in the time of severing one charge of glass to the other. This Huctuation results in a diiference in weight between the charges. However, the glass severing apparatus, as shown in Figure 2, is operated by the electric motor through a positive mechanical drive, which'drive incidentally also drives the plunger operating mechanism. thereby insuring a perfect timing between the charge producer 12 and the severing device. The cam device 74 closes the device 87 subsequently opens the blades. A

blades and the air Y slight pressure is. maintained in the cylinder V.87 at all times to keep the arms 66 and 67 from closing too' hard and to eliminate friction.

The time of severing the charge, in connection with the plunger 12, which regulates the shape of the charge, vcan be adjusted by turning the hand wheel 86. This causes a walking `of the worm 84 about the worm wheel 82 carrying the sp'rocket 83 therewith, so that the position of the cam device 74 is altered with respect to the drive shaft 34,

rraaaee which is not angularly displaced during this adjusting movement. llt the severing blades 64 and 65 are timed to cut just when thev plunger' l2 has iinished its downward stroke,

' having p'ushed the charge before it, the sevis rising, the charge will be pointed or sinall in diameter at the severing points.

'lhese adjustments ot severing the glass at a certain desired point or trztvel of the plunger l2 to secure the.desired shape of charge are' accomplished by turning of 'the worm gli by the adjusting device 8G.

'lt is obvious that` various-changes and moditications may be ina-de in the" details of construction and design of the above' speci cally described embodiment ot thisiiivention without departing from the spirit thereoit, such changes' and modifications being restricted only by the scopev of the following claims,

1lllfhat is claimed is l. A charge forming device comprising a plunger, ahead thereon having slotted arms, a shat't, a driving head on the shaft, a bolt at one side of thev driving head to engage one slotted arm oi' the plunger head,r

and a hinged bolt at the other side of the driving head to engage the other slotted arm.d

2. i charge forming device comprising a plunger, a. hollow head-piece loosely receiving said plunger, a washerwvith rounded face on the plunger, a nut in the head-piece engaging said washer, and a, driving part detachably receiving said head-piece.

3. i charge forming device comprising a reservoir tor moltenglasacharge forming means, and charge severing means including shears, cam means to close said shears, and pneumatic means to open the shears.

Il. il charge forming device comprising a plunger, a rotary cam concentric with the plunger, a yoke concentric with the plunger and having a roller :for riding on said cani,

said iyoke being slidablymountedwith respect to the plunger and cam, and means for causing sliding movement ci' the yoke en the plunger and i'or holding the yoke in adjusted position. i

5. A charge forming device comprising a plunger, a rotary cam concentric withthe plunger, a yoke concentric with the plunger and having a roller for riding on said cam, said yoke being slidably mounted with respect to the plunger and cam, a lined abutment carried by the plunger, and movable means carried by the yoke and engaging said abutmentforA adjusting the yoke along the plunger.

v6. it charge forming device comprising a plunger, a rotary cam concentric with the plunger, a yoke concentric with the plunger and having a roller for riding on said cam, said yoke being slidably .mounted with rcspect to the plunger and cam, a. nut fixed to the plunger, and a screw carried bythe yoke and extending through the nut Lt'or adjusting vthe yoke axially on the plunger.

7. i charge torming'device comprising a plunger, a rotary cain concentric with the plunger, a yoke concentric with the plunger and having a roller for riding on said cam, said yoke zbeing slidably mounted with respect to the plunger and cam; a nut having means whereby it may besecured at any one of a number of points on said plunger, a screw arranged through said nut and being mounted for rotary movement in said yoke but restrained :troni axial slidingmoveinent,

and means connected to said screw for rotat- ALBERT l?. TREMBLAY 

